<template>
  <div class="row">
      <div v-show="users.length" class="card" v-for="user in users" :key="user.id">
        <a :href="user.html_url" target="_blank">
          <img :src="user.avatar_url" style='width: 100px'/>
        </a>
        <p class="card-text">{{user.login}}</p>
      </div>
      <div v-show="isFirst"><h2>欢迎来到尚硅谷</h2></div>
      <div v-show="isLoading">加载中...</div>
      <div v-show="errMsg">{{ errMsg }}</div>
    </div>
</template>

<script>
export default {
    name:'List',
    data() {
        return {
            isFirst:true,
            isLoading:false,
            errMsg:'',
            users:[]
        }
    },
    methods:{
        getUsers(keyValue){
            this.isFirst=false;
            this.isLoading=true;
            this.$http.get(`https://api.github.com/search/users?q=${keyValue}`).then(
                response=>{
                //    console.log(response.data) 
                this.isLoading=false;
                this.users=response.data.items;
                
                // console.log(this.users);
                },
                error=>{
                    this.isLoading=false;
                    // console.log(error.message)
                    this.errMsg=error.message;
                }
            )
        }
  },
  mounted(){
    this.$bus.$on('getUsers',this.getUsers)
  },
  beforeDestroy(){
    this.$bus.$off('getUsers');
  }
}
</script>

<style>
.album {
  min-height: 50rem; /* Can be removed; just added for demo purposes */
  padding-top: 3rem;
  padding-bottom: 3rem;
  background-color: #f7f7f7;
}

.card {
  float: left;
  width: 33.333%;
  padding: .75rem;
  margin-bottom: 2rem;
  border: 1px solid #efefef;
  text-align: center;
}

.card > img {
  margin-bottom: .75rem;
  border-radius: 100px;
}

.card-text {
  font-size: 85%;
}
</style>